You are here:
USEPA METHOD STUDY 35 - SW-846 METHOD 3005, ACID DIGESTION OF WATERS FOR TOTAL RECOVERABLE OR DISSOLVED METALS FOR ANALYSES BY FLAME ATOMIC ABSORPTION SPECTROSCOPY
Citation:
Edgell, K. USEPA METHOD STUDY 35 - SW-846 METHOD 3005, ACID DIGESTION OF WATERS FOR TOTAL RECOVERABLE OR DISSOLVED METALS FOR ANALYSES BY FLAME ATOMIC ABSORPTION SPECTROSCOPY. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/4-89/015 (NTIS PB89190573), 1989.
Description:
An interlaboratory collaborative study was conducted to determine the precision and bias (recovery) of Solid Waste (SW) Method 3005 for the analysis of 21 elements in ground water. SW Method 3005 is entitled, "Acid Digestion of Waters for Total Recoverable Metals for Analyses by Flame-AA," and includes instructions for quality control, sample preparation and analysis of samples by AA-Flame. The study design was based upon Youden's non-replicate plan for collaborative tests of analytical methods. Each water type was spiked with six concentrations (as three Youden pairs) of the 21 test elements and was prepared using nitric/hydochloric acid digestion procedure and analyzed by Atomic Absorption (AA-Direct Aspiration). Test data from three spiked ground water sources were compared against reagent water which was used as a control. The resulting data were using USEPA's computer programs entitled "Interlaboratory Method Validation Study" (IMVS). This study produced, for each element, measures of precision and mean recovery for the acid digestion/AA-Direct Aspiration and compared the performance of the method between water types and reagent water. The study was conducted by the Bionetics Corporation at the direction of the U.S. Environmental Protection Agency, Quality Assurance Research Division, Environmental Monitoring Systems Laboratory, Cincinnati, Ohio under EPA Contract No. 68-03-3254. This report covers a period of time from September l0, 1986 to December 21, 1987.